Grade 1 Math · Addition Within 20

Grade 1 Addition Within 20 Practice Test

Build addition fluency with five 10-question practice tests covering number bonds, make-a-ten strategies, missing addends, and simple word problems.

Addition Within 20 Practice Tests

These Grade 1 math practice tests help students add within 20 using counting on, number bonds, doubles, make-a-ten strategies, equations, and simple story problems. Each mini test contains 10 multiple-choice questions with answers and explanations.

Skills covered

  • Adding numbers within 10 and within 20
  • Using number bonds and make-a-ten strategies
  • Finding missing addends in equations
  • Recognizing doubles and equivalent sums
  • Solving joining and combining word problems

How to use these practice tests

Complete one 10-question test at a time. Encourage students to draw counters, use a number line, or break an addend apart when a sum is difficult. Open the solution after answering, then explain the strategy before moving to the next test.

For more Grade 1 math practice, return to the Grade 1 Math category.

3. Test

Grade 1 Addition Within 20 Practice Tests

A 10-question Grade 1 practice test on addition within 20, with answers and explanations.

Choose one answer for each question. Open the solution after answering to see the correct answer and explanation.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What number makes '3 + ? = 10' true?

Please select an answer first.

Correct answer: A

The correct answer is 7.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 3 and 7 make 10.
  3. Check the total: The correct choice is 7.

3 and 7 make 10.

2. QuestionMultiple choice

What number makes '? + 4 = 11' true?

Please select an answer first.

Correct answer: B

The correct answer is 7.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 7 + 4 = 11.
  3. Check the total: The correct choice is 7.

7 + 4 = 11.

3. QuestionMultiple choice

Which equation is true?

Please select an answer first.

Correct answer: C

The correct answer is 6 + 8 = 14.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: Six and eight make 14, so this equation is true.
  3. Check the total: The correct choice is 6 + 8 = 14.

Six and eight make 14, so this equation is true.

4. QuestionMultiple choice

Which number belongs in '12 + ? = 20'?

Please select an answer first.

Correct answer: D

The correct answer is 8.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 12 needs 8 more to reach 20.
  3. Check the total: The correct choice is 8.

12 needs 8 more to reach 20.

5. QuestionMultiple choice

Which equation is another way to show '9 + 5'?

Please select an answer first.

Correct answer: A

The correct answer is 10 + 4.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: Move 1 from 5 to 9: 9 + 1 = 10, with 4 left. The sum stays 14.
  3. Check the total: The correct choice is 10 + 4.

Move 1 from 5 to 9: 9 + 1 = 10, with 4 left. The sum stays 14.

6. QuestionMultiple choice

What is the missing addend? '14 = 10 + ?'

Please select an answer first.

Correct answer: B

The correct answer is 4.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 10 and 4 make 14.
  3. Check the total: The correct choice is 4.

10 and 4 make 14.

7. QuestionMultiple choice

Which expression has the same sum as '6 + 6'?

Please select an answer first.

Correct answer: C

The correct answer is 7 + 5.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: Both 6 + 6 and 7 + 5 equal 12.
  3. Check the total: The correct choice is 7 + 5.

Both 6 + 6 and 7 + 5 equal 12.

8. QuestionMultiple choice

What is '11 + 8'?

Please select an answer first.

Correct answer: D

The correct answer is 19.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 11 + 8 = 19.
  3. Check the total: The correct choice is 19.

11 + 8 = 19.

9. QuestionMultiple choice

Which number makes '? + 6 = 15' true?

Please select an answer first.

Correct answer: A

The correct answer is 9.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 9 + 6 = 15.
  3. Check the total: The correct choice is 9.

9 + 6 = 15.

10. QuestionMultiple choice

What is '13 + 4'?

Please select an answer first.

Correct answer: B

The correct answer is 17.

  1. Read the equation or story: Identify the numbers being joined or added together.
  2. Use an addition strategy: 13 + 4 = 17.
  3. Check the total: The correct choice is 17.

13 + 4 = 17.

Frequently asked questions about Grade 1 addition within 20

What does addition within 20 mean?

It means joining two numbers so that their sum is 20 or less. Students practice facts such as 8 + 6 and 12 + 7.

How many questions are in each practice test?

Each mini test contains 10 multiple-choice questions. The complete page includes five mini tests and 50 questions in total.

What is a make-a-ten strategy?

A make-a-ten strategy breaks an addend apart so one number reaches 10 first. For example, 8 + 6 can become 8 + 2 + 4, which equals 14.